A-TS
78
https://a-ts.cn/en/
Fault
code
Display
code
Fault
description
Possible reasons
Actions
communication
failure
Serial port
communication error
Press
STOP/RESET to
reset,
Seek service
Improper setting of
alarm conditions
Modify PP.02,
PP.03 and
FPL.12
Host FC does not work
Check whether
the host FC is
working or not;
Check the wiring
F.Con
.
Reserved
Reserved
Reserved
F.Ct
.
Current detection
circuit is faulty
Wires or connectors of
control board are
loose
Check and
re-wire
Auxiliary power supply
is damaged
Seek service
Current detection
circuit fault
Seek service
F.CPU
.
System
disturbance
Severe disturbance
from outside
Press
STOP/RESET to
reset or install
power filter at the
input side of the
inverter.
DSP control board
read and write
error
Press
STOP/RESET to
reset
Seek service
F.rE1
.
Reserved
Reserved
Reserved
F.rE2
.
Reserved
Reserved
Reserved
F.CPy
.
Reserved
Reserved
Reserved
F.tU
.
Self-Tuning fault
Input motor
parameters wrong
Re-input motor
parameter
according to the
nameplate
Tuning overtime
Check motor
cables and limit it
within 100m.
F.oH3
.
Reserved
Reserved
Reserved
